1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd37e77b0aa61212ac572b8ff821446ee2e73a3fcc4a04cf251b1344143fbd950. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/60221d3a-8f84-464a-b698-3a19da9677f1.json and https://artists.proofprofile.net/proofs/artist/60221d3a-8f84-464a-b698-3a19da9677f1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5706926e75d4ad4818934a5c5405c23cd414ae522d13c5c19b2f3d1389b6fd59. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3DF2105460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68fd48cdd9bb4fa9096771a56f632c9616fcee76a3cce8b49b041664148d88b8. Chain 2 (Bitcoin): anchored in block 957699 (2026-07-12T11:51:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3DF2105468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf952ea36f0b309594f8e21c90caa0138d63f55630147ee9c90423a6fd3170072. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3DF2105470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60df08d5ff6ed40929c51f078e8e40b73c545b0e6dd518ac18d4aeba57560ff3. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3DF2105472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x960d4d5c54b614498916cff0c7c8c1d2f0565e0e27020d606ced6f6281d43bfa. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3DF2105473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x964cffec8dc629107ded5a471884caa01af5d20e353f32ac4e07020e9d8280e7. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3DF2105474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedaf92e75e9dd69c1eb83b07d806e75025adacf8ebb296f3044a01ec4ea8389f. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T13:04:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3DF2105475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80eb55cc2f99e1b97ca27d1c078832f5ea0b0407091db2f44d6931b1dc6767b0. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3DF2105476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf12635c00c88807892f1bb5ba392a82ce4cf64c84ec6df35139a4cdc2c83c17. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3DF2105453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e4619f6a0d860488f18174ece67d7a2312526925e208f17d282ccf091489b08. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3DF2105454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32d578f84ef469f77e25a7a6ef6ac15dc3bb70f41a059ee99c53e3124bbd9fdc. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3DF2105456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5706926e75d4ad4818934a5c5405c23cd414ae522d13c5c19b2f3d1389b6fd59. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3DF2105460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68fd48cdd9bb4fa9096771a56f632c9616fcee76a3cce8b49b041664148d88b8. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3DF2105468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60df08d5ff6ed40929c51f078e8e40b73c545b0e6dd518ac18d4aeba57560ff3. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3DF2105472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x960d4d5c54b614498916cff0c7c8c1d2f0565e0e27020d606ced6f6281d43bfa. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3DF2105473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4024eeacaa868b0e434b7bb6c0713d37e27e6a9e8f74eb86f290754fc1fea6e6. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3DF2105477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf90ce25a6fec6a4ffea8ae616f0d3d3c08ec3c0ee9e705d7275556146a3a1f0f. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3DF2105442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2bdd4e7517327253cab1c2d419eac9c753593a4c63db6b7588937a86fccb67e. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3DF2105444.
Medley Onda Loca / Cuando Tu No Estas / El Mar Me Baña / Por El Bien De Tres Amigos / Dale Sensación
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x740ec56925d2795ac7502295ccc9d5443b8ff93822fb13cb9937a03a82dbfcb9. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3DF2105446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc54a0e7bb551ef764dbccd59810e6f1e0e21e0ff9167110c9309dda884877b8c. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ2075820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6728f0f273c20999f56f7eb7886bfc832c6bb3344d614d19c7267baa395ea02e. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ2075822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x276b695e739dcb7524209f2984ebdf1816e0a06f2681da60a3b592c4cba56e25. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ2096845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde0eebb74e8450d8453ed6a0d30cfb9ac6f430eaa965099eb0611ccf3b5be9aa. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ2075827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5719cc99b41aa69db359dcf937a1b50673669f4c24b5c5725506824e82a064d. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3DF2105405.
Bailando Te Conocí / Traicionera Mentirosa / Falso Amor (Éxitos Festivos 2021-2022)
Bailando Te Conocí / Traicionera Mentirosa / Falso Amor - Éxitos Festivos 2021-2022
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b177dcb1ffb647b271731f6b67b0fb5d4a4d2648ce0596d48a0956de297fd3a. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM3DF2143710.
Bailando Te Conocí / Traicionera Mentirosa / Falso Amor (Éxitos Festivos 2021- 2022)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f42a8c016a74ea3dcc4f6ba860a10fc06e4ca74a5d70ac43aa35a1072bb03df. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARQIH2301136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa19de784069192bfb7b7b6e5abd64f0f56181cb99474004f66d95d07055bd650. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T15:22:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AR5UH2401577.